How to generate binary vector ?

2019 3 28
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How to generate a vector of unique ( deterministic not random ) sequence of bits ?. I want a binary vector to use in many different codes for comparison

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James Tursa
James Tursa 2019-3-28
There are many ways of doing this. Please give us more detail about your problem.
Walter Roberson
Walter Roberson 2019-3-28
Which deterministic algorithm do you want?
yousef Yousef
yousef Yousef 2019-3-28
I want to generate a unique sequence zeros and ones. The length of the vector is 100 for example. I want to do it using one or two commands. Every time I run it , it gives the same sequence.
Example a=[ 1 0 1 0 1 0 1 0.......] with length n=100.
Thanks
Walter Roberson
Walter Roberson 2019-3-28
编辑：Walter Roberson 2019-3-28
oldstate = rng('twister', 54321); a = randi([0 1], 1, n); rng(oldstate);
yousef Yousef
yousef Yousef 2019-3-28
This line is not working.oldstate = rng('twister', 54321);
its giving me :
Error using rng (line 125)
First input must be a nonnegative integer seed less than 2^32, 'shuffle', 'default', or generator settings captured previously
using S = RNG.
Walter Roberson
Walter Roberson 2019-3-28
oldstate = rng(65432, 'twister'); a = randi([0 1], 1, n); rng(oldstate);
I choose an initial seed that happens to give exactly 50 1's and 50 0's for n = 100.
yousef Yousef
yousef Yousef 2019-3-28
Thanks for your help. I tried many times. Each time, it gives me the same sequence. Thats exactly what Iwant. One question if I want the sequence like [1 0 1 0 1 0 1 0 .....] is this possible?
Thanks
yousef Yousef
yousef Yousef 2019-3-28
Perfect. Thanks a lot
yousef Yousef
yousef Yousef 2019-3-28
Last questions, what about if I want it as a train of pulses [1 0 1 0 1 0....]
Thanks

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